Balanced cover support



June 24, 1930. v A. BERSTED ET AL 1,767,731"

BALANCED COVER SUPPORT Filed April 25, 192' Patented June 24, 1930UNITED STATES PATENT OFFICE BALANCED COVER SUPPORT Application filedApril 23,

This invention relates to a balanced cover for a phonograph cabinet andconcerns itself with adjustable means for yieldingly holding the coverin any predetermined position; the means being adjustable through asuitable aperture in the rear wall of the cabinet.

An object of this invention is to provide means for balancing a hingedlid or cover.

Another object is to provide for readily adjusting such means fromwithout the cabinet to which the lid is hinged.

Another object is to provide a lid support which is simple inconstruction, efficient in service and economical to manufacture.

A further object of the invention is to provide a balanced cover supportwhich may be readily applied.

The invention comprises the novel structure and combination of partshereinafter described and more particularly pointed out and defined inthe appended claims.

In the accompanying drawings which illustrate a preferred embodiment ofthis invention and in which similar reference numerals refer to similarfeatures in the different views:

On the drawings:

Figure 1 is a fragmentary perspective view of a phonograph cabinetshowing the cover in partly open position.

Figure 2 is a fragmentary enlarged sectional view illustrating the coversupporting means on one side of the cabinet.

Figure 3 is a fragmentary sectional view taken upon the line III-III ofFigure 2.

As shown on the drawings:

Referring to the drawing, the reference numeral 1 indicates a phonographcabinet having a cover 2 which is hinged to the rear end 3. The cover ismaintained in open position by means of a pair of links 4 pivotedthereto. The lower end of each link 4: is pivoted to a lever 5 which ispivoted at 6 to a bracket 7 suspended from the motorboard 8. To this endthe bracket 7 extends through a suitable slot 9 in the motor-board andis provided with a flange 10 that closes the slot 9 and overlaps theends thereof as indicated at 11 which ends may be fastened 1927. SerialNo. 185,940.

by screws or the like to the motor-board. It will be noted that theflange is provided with a suitable slot 12 for receiving the link 4:. l

A coil spring 13 is connected at one of its ends to an intermediatepoint of the lever 5. The upper end of this spring is connected to anadjustable anchoring device 14 which is in the form of a lever pivotedto the bracket 7 at 15. The lever 14 is provided with a depending arm 14which extends below the pivot point 15. This arm 14 is provided with anear 16 at its lower end and adjacent the ear 16, the bracket 7 isprovided with an car 18. A screw 19 is threaded in the ear 16 and thehead of this screw extends through a suitable aperture in the ear 18;the head of the screw being provided with a suitable collar 19 whichabuts the inner side of the car 18. It will be appreciated that thetension of the spring 13 will tend to swing the lever 141 in a clockwisedirection. This movement of the lever, however, is resisted by theabutment of the collar 19 against the ear 18. The rear wall of thecabinet is provided with an aperture 20 through which a tool may beinserted for adjusting the screw 19 for varying the inclination of thelever 14 and thereby ad justing the tension of the spring 13.

It might be mentioned that the effective force of the spring 13 isvaried in accordance with the position of the cover. WVhen the cover isin closed position,the spring 13 will be distended. However, the partsat this time will be in such position that there will be insuflicienteffort in the spring to open the cover. As the cover is opened thespring will automatically raise the lever 5. upwardly from its dottedline position and the spring will be gradually compressed and therelation of parts will be such that the spring will maintain the coverin its open position.

We are aware that many changes may be made and numerous details ofconstruction may be varied through a wide range without departing fromthe principles of this invention and we, therefore, do not purposelimiting the patent granted hereon, otherwise than necessitated by theprior art.

To claim as our invention:

1. In a phonograph cabinet or the like having a rear wall with anopening therein, a bracket supported adjacent one wall of the cabinet, alever pivoted upon said bracket, a link connecting said lever with thecabinet cover, a spring connected at one end to an intermediate part ofsaid lever, an anchoring device to which the other end of said spring isconnected, said anchoring device including a bellcrank having adepending arm and horizontally disposed screw means accessible throughsaid opening in the rear wall of said cabinet and connected to saiddepending arm for adjusting said anchoring device.

2. In a casing having a cover and a rear wall with an aperture therein,means for holding the cover in open position comprising a lever pivotedwithin the casing, a link connecting said lever and cover, a coil springconnected to an intermediate point of said lever, an adjustableanchoring device including a bellcrank connected to said spring, saidrear wall having an aperture, and screw means in threaded engagementwith said anchoring device in alignment with and accessible through saidaperture for adjnsting said anchoring device for varying the tension ofsaid spring.

3. In a casing having a rear wall with an aperture therein and amotor-board, a bracket suspended from the motor-board, a lever pivotedto said bracket, said casing having a cover and a connection betweensaid cover and lever, a spring connected to said lever, an adjustableanchor including a bellcrank for said spring, said rear wall having anaperture and said adjustable anchor having screw means in threadedengagement with said bracket and said anchor and in alignment with andaccessible through said aperture whereby said anchoring device may beadjusted through the rear wall of said casing.

4. A talking machine cabinet having a hinged lid, a balanced support forsaid lid comprising a plate, a lever pivoted at one end to said plate, alink connected at one end to said lid and at the other end to saidlever, a bell-crank pivoted to said plate and arranged with one armextending downwardly from its pivot, a spring connected to said leverand to the other arm of said crank, and means carried by said plate andcooperating with said downwardly extending arm and accessible through anopening in a rear wall of said cabinet for varying the tension-of saidsprin '5. A talking machine cabinet having a hinged lid, a balancedsupport for said lid comprising a plate, a lever pivoted at one end tosaid plate, a link connected at one end to said lid and at the other endto said lever, a bell-crank pivoted to said plate, a spring connected tosaid lever and to one arm of said crank, an ear on said plate, an ear onthe other arm of said bell-crank, and a screw arranged in said earsoperable through a wall of said cabinet for adjusting the angularposition of said bell-crank to vary the tension of said spring.

6. A talking machine cabinet having a hinged lid, a balanced support forsaid lid comprising a plate, a lever pivoted at one end to said plate, alink connected at one end to said lid and at the other end to saidlever, an anchoring device including a bellcrank pivoted intermediateits ends to said plate, a spring connected at one end to one end of saiddevice and at the other to said lever, and horizontally disposed screwin threaded engagement with said plate and the other end oi said deviceand accessible through an opening in a wall of the cabinet for varyingthe tension of said spring.

In testimony whereof, we have hereunto subscribed our names.

ALFRED BERSTED.

MARTIN BERSTED.

